| Patents for E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186) |
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| 01/26/2013 | CA2747766A1 Submerged combustion vaporizer for heating and pressurizing hydrocarbon reservoirs method, system and apparatus |
| 01/24/2013 | WO2013013234A2 Gun upset and no-go system for deployment of perforating gun assemblies |
| 01/24/2013 | WO2013012888A2 Pulsed neutron monitoring of hydraulic fracturing and acid treatment |
| 01/24/2013 | WO2013012772A1 Heterogeneous proppant placement in a fracture with removable extrametrical material fill |
| 01/24/2013 | WO2013012548A1 System to provide a supply of controlled salinity water for enhanced oil recovery |
| 01/24/2013 | WO2013012545A1 Surfactant system to increase hydrocarbon recovery |
| 01/24/2013 | WO2013010355A1 Lubrication device for driving shaft bearing of speed reducer of oilfield pumping unit |
| 01/24/2013 | WO2013010244A1 Apparatus and methods for producing natural gas using a gas recycle phase to remove liquid from a well |
| 01/24/2013 | WO2012162157A3 Formation treatment system and method |
| 01/24/2013 | WO2012148993A3 Subsea dispersant injection systems and methods |
| 01/24/2013 | WO2012142259A3 Self-propelled simultaneous platform |
| 01/24/2013 | WO2012119092A3 Synthetic formation evaluation logs based on drilling vibrations |
| 01/24/2013 | WO2011138575A3 System and method for fluid treatment |
| 01/24/2013 | US20130023448 Methods for Treating Hydrocarbon-Servicing Fluids and Wastewater and Fluids Produced Using the Same |
| 01/24/2013 | US20130020131 Method of developing a petroleum reservoir from a technique for selecting the positions of the wells to be drilled |
| 01/24/2013 | US20130020095 Adjustable Mudline Tubing Hanger Suspension System |
| 01/24/2013 | US20130020094 Gun Upset and No-Go System for Deployment of Perforating Gun Assemblies |
| 01/24/2013 | US20130020085 Surfactant system to increase hydrocarbon recovery |
| 01/24/2013 | US20130020084 Affixation and release assembly for a mill and method |
| 01/24/2013 | US20130020083 Invert emulsion drilling fluid containing a hygroscopic liquid and a polymeric suspending agent |
| 01/24/2013 | US20130020082 Method and compositions for enhanced oil recovery |
| 01/24/2013 | US20130020081 Invert emulsion fluid containing a hygroscopic liquid, a polymeric suspending agent, and low-density solids |
| 01/24/2013 | US20130020080 Method for in situ extraction of hydrocarbon materials |
| 01/24/2013 | US20130020079 Treatment of subterranean wells with electrolyzed water |
| 01/24/2013 | US20130020078 Oil Recovery Process |
| 01/24/2013 | US20130020076 Apparatus and method for downhole steam generation and enhanced oil recovery |
| 01/24/2013 | US20130020075 Pulsed Neutron Monitoring of Hydraulic Fracturing and Acid Treatment |
| 01/24/2013 | US20130020073 Methods for increasing methanogenesis in subsurface reservoirs |
| 01/24/2013 | US20130020070 Oil well pump apparatus |
| 01/24/2013 | US20130020069 Gas Powered Subsurface Pump Drive System |
| 01/24/2013 | US20130020066 Apparatus and method for treating a subterranean formation using diversion |
| 01/24/2013 | US20130019770 Device for perforating a material comprising a tail-locking charge case |
| 01/24/2013 | DE102012212626A1 Verfahren zur in situ-Extraktion von Kohlenwasserstoff-Materialien A method for in situ extraction of hydrocarbon materials |
| 01/24/2013 | CA2841956A1 Pulsed neutron monitoring of hydraulic fracturing and acid treatment |
| 01/24/2013 | CA2841581A1 Heterogeneous proppant placement in a fracture with removable extrametrical material fill |
| 01/24/2013 | CA2841457A1 Surfactant system to increase hydrocarbon recovery |
| 01/23/2013 | EP2547939A1 Installation method of flexible pipe with subsea connector, utilizing a pull down system |
| 01/23/2013 | EP2547863A1 System and method for fracturing rock in tight reservoirs |
| 01/23/2013 | EP2547862A1 Systems and methods for positioning horizontal wells within boundaries |
| 01/23/2013 | EP2547858A1 Section mill and method for abandoning a wellbore |
| 01/23/2013 | CN202694077U Pumping unit intelligent control system based on ground indicator diagram |
| 01/23/2013 | CN202690393U Single-core submersible cable linear motor rodless pump |
| 01/23/2013 | CN202690116U Permeability-increasing and outburst-removing device for coal seam |
| 01/23/2013 | CN202690028U Pumping well gas anchor |
| 01/23/2013 | CN202690027U V-shaped well for gas-cap reservoir |
| 01/23/2013 | CN202690026U Sliding sleeve throttling sand blower |
| 01/23/2013 | CN202690025U One-dimensional fireflood physical simulation device |
| 01/23/2013 | CN202690024U Forced hydraulic impact pulsing injector |
| 01/23/2013 | CN202690023U Inside seal type flow divider |
| 01/23/2013 | CN202690022U IP (Internet Protocol) water injection instrument |
| 01/23/2013 | CN202690021U Anti-channeling layered flow control flow string |
| 01/23/2013 | CN202690020U High-pressure difference composite valve core throttle valve |
| 01/23/2013 | CN202690019U Sand blasting perforating gun |
| 01/23/2013 | CN202690018U Novel production screen |
| 01/23/2013 | CN202690017U Efficient underground sand preventing device |
| 01/23/2013 | CN202690016U Half-beam pumping unit |
| 01/23/2013 | CN202690015U Steel wire rope clamping structure |
| 01/23/2013 | CN202690014U Sensor replacing mechanism |
| 01/23/2013 | CN202690013U Rider-type walking-beam balance adjustment device for oil extractor |
| 01/23/2013 | CN202690012U Non-commutative chain oil pumping unit for oil extraction of oilfield |
| 01/23/2013 | CN202690011U Logic integrated type hydraulic oil-extraction device |
| 01/23/2013 | CN102892974A Improvements in hydrocarbon recovery |
| 01/23/2013 | CN102892973A Subterranean reservoir treatment method |
| 01/23/2013 | CN102892972A Artifact reduction in method of iterative inversion of geophysical data |
| 01/23/2013 | CN102889077A Testing device for detecting pressure distribution in hole by simulating hydra-jet fracturing under actual working conditions |
| 01/23/2013 | CN102889071A Liquid crystal display device |
| 01/23/2013 | CN102889070A Simulative wellhead production method, and simulation and application of irregular planar well pattern |
| 01/23/2013 | CN102889069A Energy-saving oil extracting device |
| 01/23/2013 | CN102071920B Gas extraction equipment and method for low permeability coal bed gas |
| 01/23/2013 | CN101975066B Coal-rock drift quick tunnelling method |
| 01/23/2013 | CN101881147B Suspension chain positioning device for positioning depth of buoy in sea |
| 01/23/2013 | CN101748994B Beam-pumping unit |
| 01/23/2013 | CN101718188B Tower-type pulley block transmission oil jack |
| 01/23/2013 | CN101705812B Large-discharge single pipe layered polymer injection and injection allocation method and device |
| 01/23/2013 | CN101535595B Wellbore method and apparatus for completion, production and injection |
| 01/23/2013 | CN101395339B Method and apparatus to cement a perforated casing |
| 01/23/2013 | CN101316912B Method and composition of preparing polymeric fracturing fluids |
| 01/23/2013 | CN101126312B Fluctuation petroleum exploitation method |
| 01/22/2013 | US8357639 Nanoemulsions |
| 01/22/2013 | US8356667 Liquid crystals for drilling, completion and production fluids |
| 01/22/2013 | US8356666 Wellbore perforation tool |
| 01/22/2013 | US8356665 Method for recovering heavy/viscous oils from a subterranean formation |
| 01/22/2013 | US8356664 Wellbore method and apparatus for completion, production and injection |
| 01/22/2013 | US8356663 Compliant expansion swage |
| 01/22/2013 | CA2783522A1 Electromechanical assembly for connecting a series of guns used in the perforation of wells |
| 01/22/2013 | CA2712229C A method of differential etching of the subterranean fracture |
| 01/22/2013 | CA2701909C Apparatus and method for ratcheting stimulation tool |
| 01/22/2013 | CA2675531C System and method for performing oilfield drilling operations using visualization techniques |
| 01/22/2013 | CA2610349C Apparatus and method for deliquifying a well |
| 01/20/2013 | CA2778157A1 Method and apparatus for bulk transport of proppant |
| 01/19/2013 | CA2758407A1 Oil recovery process |
| 01/17/2013 | WO2013010050A2 Low surface friction proppants |
| 01/17/2013 | WO2013009694A2 Downhole polymer foam applications |
| 01/17/2013 | WO2013009628A2 Compound angle wedge screen clamp for vibratory separator |
| 01/17/2013 | WO2013009617A2 Methods of limiting or reducing the amount of oil in a sea using a fluid director |
| 01/17/2013 | WO2013009513A1 Electromagnetic depth/orientation detection tool and methods thereof |
| 01/17/2013 | WO2013009458A2 Remotely activated downhole apparatus and methods |
| 01/17/2013 | WO2013009455A2 Remotely activated downhole apparatus and methods |
| 01/17/2013 | WO2013009389A1 Estimating Fluid Levels in a Progressing Cavity Pump System |
| 01/17/2013 | WO2013009297A1 High pressure and flow rate pump useful in formation fluid sample testing |